./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:09:20,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:09:20,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:09:20,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:09:20,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:09:20,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:09:20,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:09:20,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:09:20,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:09:20,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:09:20,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:09:20,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:09:20,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:09:20,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:09:20,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:09:20,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:09:20,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:09:20,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:09:20,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:09:20,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:09:20,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:09:20,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:09:20,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:09:20,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:09:20,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:09:20,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:09:20,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:09:20,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:09:20,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:09:20,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:09:20,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:09:20,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:09:20,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:09:20,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:09:20,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:09:20,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:09:20,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:09:20,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:09:20,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:09:20,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:09:20,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:09:20,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:09:20,964 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:09:20,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:09:20,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:09:20,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:09:20,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:09:20,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:09:20,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:09:20,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:09:20,971 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:09:20,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:09:20,972 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:09:20,972 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:09:20,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:09:20,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:09:20,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:09:20,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:09:20,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:09:20,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:09:20,974 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:09:20,974 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:09:20,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:09:20,975 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:09:20,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:09:20,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:09:20,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:09:20,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:09:20,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:09:20,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:09:20,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:09:20,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:09:20,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:09:20,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:09:20,987 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:09:20,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:09:20,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:09:20,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 [2022-11-02 21:09:21,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:09:21,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:09:21,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:09:21,344 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:09:21,345 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:09:21,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-02 21:09:21,421 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/data/6f3045e3d/b05e369b7d9f4c71ac4cdcafb46e0a1a/FLAGa53908fa4 [2022-11-02 21:09:21,928 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:09:21,929 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-02 21:09:21,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/data/6f3045e3d/b05e369b7d9f4c71ac4cdcafb46e0a1a/FLAGa53908fa4 [2022-11-02 21:09:22,271 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/data/6f3045e3d/b05e369b7d9f4c71ac4cdcafb46e0a1a [2022-11-02 21:09:22,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:09:22,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:09:22,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:09:22,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:09:22,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:09:22,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:09:22" (1/1) ... [2022-11-02 21:09:22,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dcffdb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22, skipping insertion in model container [2022-11-02 21:09:22,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:09:22" (1/1) ... [2022-11-02 21:09:22,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:09:22,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:09:22,574 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-02 21:09:22,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:09:22,595 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:09:22,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-02 21:09:22,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:09:22,672 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:09:22,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22 WrapperNode [2022-11-02 21:09:22,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:09:22,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:09:22,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:09:22,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:09:22,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22" (1/1) ... [2022-11-02 21:09:22,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22" (1/1) ... [2022-11-02 21:09:22,776 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 811 [2022-11-02 21:09:22,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:09:22,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:09:22,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:09:22,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:09:22,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22" (1/1) ... [2022-11-02 21:09:22,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22" (1/1) ... [2022-11-02 21:09:22,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22" (1/1) ... [2022-11-02 21:09:22,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22" (1/1) ... [2022-11-02 21:09:22,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22" (1/1) ... [2022-11-02 21:09:22,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22" (1/1) ... [2022-11-02 21:09:22,902 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22" (1/1) ... [2022-11-02 21:09:22,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22" (1/1) ... [2022-11-02 21:09:22,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:09:22,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:09:22,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:09:22,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:09:22,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22" (1/1) ... [2022-11-02 21:09:22,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:09:22,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:09:22,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:09:22,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa44bc0-6989-4c1f-a65f-ba9c15850557/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:09:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:09:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:09:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:09:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:09:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 21:09:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 21:09:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 21:09:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 21:09:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 21:09:23,017 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 21:09:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:09:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:09:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:09:23,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:09:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:09:23,020 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:09:23,207 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:09:23,209 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:09:24,724 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:09:24,750 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:09:24,750 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-02 21:09:24,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:09:24 BoogieIcfgContainer [2022-11-02 21:09:24,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:09:24,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:09:24,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:09:24,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:09:24,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:09:22" (1/3) ... [2022-11-02 21:09:24,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650010ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:09:24, skipping insertion in model container [2022-11-02 21:09:24,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:22" (2/3) ... [2022-11-02 21:09:24,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650010ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:09:24, skipping insertion in model container [2022-11-02 21:09:24,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:09:24" (3/3) ... [2022-11-02 21:09:24,768 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2022-11-02 21:09:24,778 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:09:24,790 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:09:24,790 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2022-11-02 21:09:24,791 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:09:25,083 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 21:09:25,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1029 places, 1070 transitions, 2164 flow [2022-11-02 21:09:25,819 INFO L130 PetriNetUnfolder]: 51/1067 cut-off events. [2022-11-02 21:09:25,819 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 21:09:25,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1080 conditions, 1067 events. 51/1067 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2321 event pairs, 0 based on Foata normal form. 0/897 useless extension candidates. Maximal degree in co-relation 840. Up to 2 conditions per place. [2022-11-02 21:09:25,847 INFO L82 GeneralOperation]: Start removeDead. Operand has 1029 places, 1070 transitions, 2164 flow [2022-11-02 21:09:25,873 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1003 places, 1041 transitions, 2100 flow [2022-11-02 21:09:25,889 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:09:25,898 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ff234a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:09:25,898 INFO L358 AbstractCegarLoop]: Starting to check reachability of 197 error locations. [2022-11-02 21:09:25,904 INFO L130 PetriNetUnfolder]: 0/38 cut-off events. [2022-11-02 21:09:25,904 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:09:25,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:25,906 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:25,907 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:25,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:25,912 INFO L85 PathProgramCache]: Analyzing trace with hash -761737192, now seen corresponding path program 1 times [2022-11-02 21:09:25,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:25,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288235397] [2022-11-02 21:09:25,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:25,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:26,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:26,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288235397] [2022-11-02 21:09:26,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288235397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:26,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:26,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:26,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858199891] [2022-11-02 21:09:26,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:26,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:26,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:26,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:26,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:26,329 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1070 [2022-11-02 21:09:26,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1003 places, 1041 transitions, 2100 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:26,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:26,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1070 [2022-11-02 21:09:26,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:29,378 INFO L130 PetriNetUnfolder]: 408/5346 cut-off events. [2022-11-02 21:09:29,378 INFO L131 PetriNetUnfolder]: For 162/162 co-relation queries the response was YES. [2022-11-02 21:09:29,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6113 conditions, 5346 events. 408/5346 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 45012 event pairs, 279 based on Foata normal form. 172/4522 useless extension candidates. Maximal degree in co-relation 5361. Up to 522 conditions per place. [2022-11-02 21:09:29,583 INFO L137 encePairwiseOnDemand]: 1039/1070 looper letters, 39 selfloop transitions, 2 changer transitions 16/1012 dead transitions. [2022-11-02 21:09:29,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1004 places, 1012 transitions, 2124 flow [2022-11-02 21:09:29,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:29,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:29,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3064 transitions. [2022-11-02 21:09:29,615 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9545171339563863 [2022-11-02 21:09:29,616 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3064 transitions. [2022-11-02 21:09:29,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3064 transitions. [2022-11-02 21:09:29,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:29,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3064 transitions. [2022-11-02 21:09:29,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1021.3333333333334) internal successors, (3064), 3 states have internal predecessors, (3064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:29,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:29,656 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:29,659 INFO L175 Difference]: Start difference. First operand has 1003 places, 1041 transitions, 2100 flow. Second operand 3 states and 3064 transitions. [2022-11-02 21:09:29,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1004 places, 1012 transitions, 2124 flow [2022-11-02 21:09:29,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 998 places, 1012 transitions, 2112 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-02 21:09:29,697 INFO L231 Difference]: Finished difference. Result has 998 places, 996 transitions, 2002 flow [2022-11-02 21:09:29,702 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=2030, PETRI_DIFFERENCE_MINUEND_PLACES=996, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1012, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1010, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2002, PETRI_PLACES=998, PETRI_TRANSITIONS=996} [2022-11-02 21:09:29,708 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -5 predicate places. [2022-11-02 21:09:29,709 INFO L495 AbstractCegarLoop]: Abstraction has has 998 places, 996 transitions, 2002 flow [2022-11-02 21:09:29,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:29,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:29,712 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:29,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:09:29,713 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:29,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:29,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1042263533, now seen corresponding path program 1 times [2022-11-02 21:09:29,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:29,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282834156] [2022-11-02 21:09:29,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:29,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:29,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:29,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:29,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282834156] [2022-11-02 21:09:29,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282834156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:29,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:29,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:29,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730659775] [2022-11-02 21:09:29,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:29,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:29,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:29,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:29,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:29,843 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1070 [2022-11-02 21:09:29,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 998 places, 996 transitions, 2002 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:29,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:29,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1070 [2022-11-02 21:09:29,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:31,536 INFO L130 PetriNetUnfolder]: 235/4103 cut-off events. [2022-11-02 21:09:31,536 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-02 21:09:31,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4424 conditions, 4103 events. 235/4103 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 31224 event pairs, 132 based on Foata normal form. 0/3432 useless extension candidates. Maximal degree in co-relation 4377. Up to 257 conditions per place. [2022-11-02 21:09:31,678 INFO L137 encePairwiseOnDemand]: 1059/1070 looper letters, 27 selfloop transitions, 1 changer transitions 0/986 dead transitions. [2022-11-02 21:09:31,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 974 places, 986 transitions, 2038 flow [2022-11-02 21:09:31,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:31,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:31,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3041 transitions. [2022-11-02 21:09:31,686 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9473520249221183 [2022-11-02 21:09:31,686 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3041 transitions. [2022-11-02 21:09:31,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3041 transitions. [2022-11-02 21:09:31,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:31,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3041 transitions. [2022-11-02 21:09:31,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1013.6666666666666) internal successors, (3041), 3 states have internal predecessors, (3041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:31,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:31,707 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:31,707 INFO L175 Difference]: Start difference. First operand has 998 places, 996 transitions, 2002 flow. Second operand 3 states and 3041 transitions. [2022-11-02 21:09:31,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 974 places, 986 transitions, 2038 flow [2022-11-02 21:09:31,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 972 places, 986 transitions, 2034 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:31,728 INFO L231 Difference]: Finished difference. Result has 972 places, 986 transitions, 1980 flow [2022-11-02 21:09:31,730 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1978, PETRI_DIFFERENCE_MINUEND_PLACES=970, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=986, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=985, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1980, PETRI_PLACES=972, PETRI_TRANSITIONS=986} [2022-11-02 21:09:31,731 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -31 predicate places. [2022-11-02 21:09:31,732 INFO L495 AbstractCegarLoop]: Abstraction has has 972 places, 986 transitions, 1980 flow [2022-11-02 21:09:31,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:31,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:31,734 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:31,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:09:31,735 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:31,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:31,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1551388717, now seen corresponding path program 1 times [2022-11-02 21:09:31,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:31,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327147037] [2022-11-02 21:09:31,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:31,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:31,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:31,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:31,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327147037] [2022-11-02 21:09:31,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327147037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:31,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:31,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:31,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176494765] [2022-11-02 21:09:31,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:31,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:31,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:31,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:31,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:31,809 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1070 [2022-11-02 21:09:31,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 972 places, 986 transitions, 1980 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:31,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:31,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1070 [2022-11-02 21:09:31,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:33,302 INFO L130 PetriNetUnfolder]: 206/3445 cut-off events. [2022-11-02 21:09:33,302 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-02 21:09:33,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3750 conditions, 3445 events. 206/3445 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 23454 event pairs, 117 based on Foata normal form. 0/2835 useless extension candidates. Maximal degree in co-relation 3704. Up to 279 conditions per place. [2022-11-02 21:09:33,428 INFO L137 encePairwiseOnDemand]: 1067/1070 looper letters, 39 selfloop transitions, 2 changer transitions 0/985 dead transitions. [2022-11-02 21:09:33,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 973 places, 985 transitions, 2060 flow [2022-11-02 21:09:33,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:33,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:33,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3036 transitions. [2022-11-02 21:09:33,435 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9457943925233645 [2022-11-02 21:09:33,436 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3036 transitions. [2022-11-02 21:09:33,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3036 transitions. [2022-11-02 21:09:33,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:33,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3036 transitions. [2022-11-02 21:09:33,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1012.0) internal successors, (3036), 3 states have internal predecessors, (3036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,456 INFO L175 Difference]: Start difference. First operand has 972 places, 986 transitions, 1980 flow. Second operand 3 states and 3036 transitions. [2022-11-02 21:09:33,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 973 places, 985 transitions, 2060 flow [2022-11-02 21:09:33,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 972 places, 985 transitions, 2059 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:09:33,475 INFO L231 Difference]: Finished difference. Result has 972 places, 985 transitions, 1981 flow [2022-11-02 21:09:33,477 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1977, PETRI_DIFFERENCE_MINUEND_PLACES=970, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=985, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=983, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1981, PETRI_PLACES=972, PETRI_TRANSITIONS=985} [2022-11-02 21:09:33,478 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -31 predicate places. [2022-11-02 21:09:33,478 INFO L495 AbstractCegarLoop]: Abstraction has has 972 places, 985 transitions, 1981 flow [2022-11-02 21:09:33,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:33,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:33,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:09:33,481 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:33,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:33,482 INFO L85 PathProgramCache]: Analyzing trace with hash -832084791, now seen corresponding path program 1 times [2022-11-02 21:09:33,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:33,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002441935] [2022-11-02 21:09:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:33,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:33,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:33,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:33,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002441935] [2022-11-02 21:09:33,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002441935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:33,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:33,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:33,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40424534] [2022-11-02 21:09:33,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:33,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:33,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:33,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:33,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:33,563 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1070 [2022-11-02 21:09:33,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 972 places, 985 transitions, 1981 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:33,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1070 [2022-11-02 21:09:33,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:34,879 INFO L130 PetriNetUnfolder]: 135/2859 cut-off events. [2022-11-02 21:09:34,879 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-02 21:09:34,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3031 conditions, 2859 events. 135/2859 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 17449 event pairs, 60 based on Foata normal form. 0/2413 useless extension candidates. Maximal degree in co-relation 2986. Up to 149 conditions per place. [2022-11-02 21:09:34,994 INFO L137 encePairwiseOnDemand]: 1059/1070 looper letters, 27 selfloop transitions, 1 changer transitions 0/975 dead transitions. [2022-11-02 21:09:34,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 964 places, 975 transitions, 2017 flow [2022-11-02 21:09:34,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:34,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:35,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3041 transitions. [2022-11-02 21:09:35,003 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9473520249221183 [2022-11-02 21:09:35,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3041 transitions. [2022-11-02 21:09:35,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3041 transitions. [2022-11-02 21:09:35,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:35,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3041 transitions. [2022-11-02 21:09:35,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1013.6666666666666) internal successors, (3041), 3 states have internal predecessors, (3041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:35,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:35,047 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:35,048 INFO L175 Difference]: Start difference. First operand has 972 places, 985 transitions, 1981 flow. Second operand 3 states and 3041 transitions. [2022-11-02 21:09:35,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 964 places, 975 transitions, 2017 flow [2022-11-02 21:09:35,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 962 places, 975 transitions, 2013 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:35,070 INFO L231 Difference]: Finished difference. Result has 962 places, 975 transitions, 1959 flow [2022-11-02 21:09:35,077 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1957, PETRI_DIFFERENCE_MINUEND_PLACES=960, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=975, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=974, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1959, PETRI_PLACES=962, PETRI_TRANSITIONS=975} [2022-11-02 21:09:35,079 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -41 predicate places. [2022-11-02 21:09:35,080 INFO L495 AbstractCegarLoop]: Abstraction has has 962 places, 975 transitions, 1959 flow [2022-11-02 21:09:35,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:35,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:35,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:35,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:09:35,082 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:35,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:35,083 INFO L85 PathProgramCache]: Analyzing trace with hash -774698993, now seen corresponding path program 1 times [2022-11-02 21:09:35,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:35,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797850929] [2022-11-02 21:09:35,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:35,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:35,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:35,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797850929] [2022-11-02 21:09:35,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797850929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:35,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:35,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:35,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711959830] [2022-11-02 21:09:35,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:35,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:35,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:35,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:35,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:35,217 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1070 [2022-11-02 21:09:35,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 962 places, 975 transitions, 1959 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:35,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:35,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1070 [2022-11-02 21:09:35,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:36,914 INFO L130 PetriNetUnfolder]: 430/4925 cut-off events. [2022-11-02 21:09:36,914 INFO L131 PetriNetUnfolder]: For 122/166 co-relation queries the response was YES. [2022-11-02 21:09:37,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5492 conditions, 4925 events. 430/4925 cut-off events. For 122/166 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 41984 event pairs, 279 based on Foata normal form. 0/4065 useless extension candidates. Maximal degree in co-relation 5446. Up to 549 conditions per place. [2022-11-02 21:09:37,086 INFO L137 encePairwiseOnDemand]: 1067/1070 looper letters, 39 selfloop transitions, 2 changer transitions 0/974 dead transitions. [2022-11-02 21:09:37,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 963 places, 974 transitions, 2039 flow [2022-11-02 21:09:37,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:37,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:37,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3036 transitions. [2022-11-02 21:09:37,094 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9457943925233645 [2022-11-02 21:09:37,095 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3036 transitions. [2022-11-02 21:09:37,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3036 transitions. [2022-11-02 21:09:37,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:37,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3036 transitions. [2022-11-02 21:09:37,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1012.0) internal successors, (3036), 3 states have internal predecessors, (3036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:37,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:37,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:37,114 INFO L175 Difference]: Start difference. First operand has 962 places, 975 transitions, 1959 flow. Second operand 3 states and 3036 transitions. [2022-11-02 21:09:37,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 963 places, 974 transitions, 2039 flow [2022-11-02 21:09:37,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 962 places, 974 transitions, 2038 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:09:37,136 INFO L231 Difference]: Finished difference. Result has 962 places, 974 transitions, 1960 flow [2022-11-02 21:09:37,138 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1956, PETRI_DIFFERENCE_MINUEND_PLACES=960, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=974, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=972, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1960, PETRI_PLACES=962, PETRI_TRANSITIONS=974} [2022-11-02 21:09:37,141 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -41 predicate places. [2022-11-02 21:09:37,142 INFO L495 AbstractCegarLoop]: Abstraction has has 962 places, 974 transitions, 1960 flow [2022-11-02 21:09:37,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:37,143 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:37,143 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:37,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:09:37,144 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:37,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:37,145 INFO L85 PathProgramCache]: Analyzing trace with hash 633677127, now seen corresponding path program 1 times [2022-11-02 21:09:37,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:37,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87466372] [2022-11-02 21:09:37,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:37,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:37,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:37,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:37,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87466372] [2022-11-02 21:09:37,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87466372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:37,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:37,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:37,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063242022] [2022-11-02 21:09:37,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:37,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:37,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:37,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:37,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:37,255 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1070 [2022-11-02 21:09:37,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 962 places, 974 transitions, 1960 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:37,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:37,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1070 [2022-11-02 21:09:37,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:38,380 INFO L130 PetriNetUnfolder]: 251/3848 cut-off events. [2022-11-02 21:09:38,380 INFO L131 PetriNetUnfolder]: For 65/94 co-relation queries the response was YES. [2022-11-02 21:09:38,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4140 conditions, 3848 events. 251/3848 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 28268 event pairs, 132 based on Foata normal form. 0/3267 useless extension candidates. Maximal degree in co-relation 4095. Up to 274 conditions per place. [2022-11-02 21:09:38,457 INFO L137 encePairwiseOnDemand]: 1059/1070 looper letters, 27 selfloop transitions, 1 changer transitions 0/964 dead transitions. [2022-11-02 21:09:38,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 954 places, 964 transitions, 1996 flow [2022-11-02 21:09:38,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:38,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:38,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3041 transitions. [2022-11-02 21:09:38,465 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9473520249221183 [2022-11-02 21:09:38,465 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3041 transitions. [2022-11-02 21:09:38,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3041 transitions. [2022-11-02 21:09:38,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:38,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3041 transitions. [2022-11-02 21:09:38,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1013.6666666666666) internal successors, (3041), 3 states have internal predecessors, (3041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,481 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,481 INFO L175 Difference]: Start difference. First operand has 962 places, 974 transitions, 1960 flow. Second operand 3 states and 3041 transitions. [2022-11-02 21:09:38,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 954 places, 964 transitions, 1996 flow [2022-11-02 21:09:38,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 952 places, 964 transitions, 1992 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:38,498 INFO L231 Difference]: Finished difference. Result has 952 places, 964 transitions, 1938 flow [2022-11-02 21:09:38,500 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1936, PETRI_DIFFERENCE_MINUEND_PLACES=950, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=964, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=963, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1938, PETRI_PLACES=952, PETRI_TRANSITIONS=964} [2022-11-02 21:09:38,501 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -51 predicate places. [2022-11-02 21:09:38,501 INFO L495 AbstractCegarLoop]: Abstraction has has 952 places, 964 transitions, 1938 flow [2022-11-02 21:09:38,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:38,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:38,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:09:38,503 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:38,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:38,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1300259338, now seen corresponding path program 1 times [2022-11-02 21:09:38,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:38,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366473068] [2022-11-02 21:09:38,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:38,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:38,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:38,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:38,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366473068] [2022-11-02 21:09:38,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366473068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:38,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:38,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:38,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333300825] [2022-11-02 21:09:38,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:38,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:38,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:38,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:38,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:38,550 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1022 out of 1070 [2022-11-02 21:09:38,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 964 transitions, 1938 flow. Second operand has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:38,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1022 of 1070 [2022-11-02 21:09:38,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:38,949 INFO L130 PetriNetUnfolder]: 34/1311 cut-off events. [2022-11-02 21:09:38,950 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-02 21:09:38,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1355 conditions, 1311 events. 34/1311 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3849 event pairs, 6 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 1309. Up to 28 conditions per place. [2022-11-02 21:09:38,985 INFO L137 encePairwiseOnDemand]: 1067/1070 looper letters, 15 selfloop transitions, 2 changer transitions 0/963 dead transitions. [2022-11-02 21:09:38,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 963 transitions, 1970 flow [2022-11-02 21:09:38,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:38,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3084 transitions. [2022-11-02 21:09:38,992 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9607476635514018 [2022-11-02 21:09:38,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3084 transitions. [2022-11-02 21:09:38,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3084 transitions. [2022-11-02 21:09:38,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:38,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3084 transitions. [2022-11-02 21:09:39,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1028.0) internal successors, (3084), 3 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,010 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,010 INFO L175 Difference]: Start difference. First operand has 952 places, 964 transitions, 1938 flow. Second operand 3 states and 3084 transitions. [2022-11-02 21:09:39,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 963 transitions, 1970 flow [2022-11-02 21:09:39,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 952 places, 963 transitions, 1969 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:09:39,029 INFO L231 Difference]: Finished difference. Result has 952 places, 963 transitions, 1939 flow [2022-11-02 21:09:39,031 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1935, PETRI_DIFFERENCE_MINUEND_PLACES=950, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=963, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=961, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1939, PETRI_PLACES=952, PETRI_TRANSITIONS=963} [2022-11-02 21:09:39,032 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -51 predicate places. [2022-11-02 21:09:39,033 INFO L495 AbstractCegarLoop]: Abstraction has has 952 places, 963 transitions, 1939 flow [2022-11-02 21:09:39,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:39,035 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:39,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:09:39,035 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:39,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:39,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1671524599, now seen corresponding path program 1 times [2022-11-02 21:09:39,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:39,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050107798] [2022-11-02 21:09:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:39,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:39,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:39,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:39,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050107798] [2022-11-02 21:09:39,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050107798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:39,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:39,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:39,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305402178] [2022-11-02 21:09:39,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:39,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:39,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:39,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:39,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:39,117 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1070 [2022-11-02 21:09:39,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 963 transitions, 1939 flow. Second operand has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:39,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1070 [2022-11-02 21:09:39,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:39,544 INFO L130 PetriNetUnfolder]: 54/1562 cut-off events. [2022-11-02 21:09:39,544 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 21:09:39,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1647 conditions, 1562 events. 54/1562 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6944 event pairs, 18 based on Foata normal form. 0/1353 useless extension candidates. Maximal degree in co-relation 1601. Up to 55 conditions per place. [2022-11-02 21:09:39,574 INFO L137 encePairwiseOnDemand]: 1067/1070 looper letters, 18 selfloop transitions, 2 changer transitions 0/962 dead transitions. [2022-11-02 21:09:39,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 962 transitions, 1977 flow [2022-11-02 21:09:39,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:39,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:39,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3078 transitions. [2022-11-02 21:09:39,581 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9588785046728971 [2022-11-02 21:09:39,581 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3078 transitions. [2022-11-02 21:09:39,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3078 transitions. [2022-11-02 21:09:39,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:39,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3078 transitions. [2022-11-02 21:09:39,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1026.0) internal successors, (3078), 3 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,598 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,598 INFO L175 Difference]: Start difference. First operand has 952 places, 963 transitions, 1939 flow. Second operand 3 states and 3078 transitions. [2022-11-02 21:09:39,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 962 transitions, 1977 flow [2022-11-02 21:09:39,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 951 places, 962 transitions, 1973 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:39,616 INFO L231 Difference]: Finished difference. Result has 951 places, 962 transitions, 1937 flow [2022-11-02 21:09:39,617 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1933, PETRI_DIFFERENCE_MINUEND_PLACES=949, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=960, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1937, PETRI_PLACES=951, PETRI_TRANSITIONS=962} [2022-11-02 21:09:39,618 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -52 predicate places. [2022-11-02 21:09:39,618 INFO L495 AbstractCegarLoop]: Abstraction has has 951 places, 962 transitions, 1937 flow [2022-11-02 21:09:39,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:39,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:39,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:09:39,620 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:39,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:39,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1392357092, now seen corresponding path program 1 times [2022-11-02 21:09:39,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:39,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996320212] [2022-11-02 21:09:39,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:39,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:39,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:39,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:39,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996320212] [2022-11-02 21:09:39,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996320212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:39,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:39,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:39,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034742093] [2022-11-02 21:09:39,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:39,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:39,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:39,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:39,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:39,694 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1070 [2022-11-02 21:09:39,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 951 places, 962 transitions, 1937 flow. Second operand has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:39,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1070 [2022-11-02 21:09:39,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:40,104 INFO L130 PetriNetUnfolder]: 54/1523 cut-off events. [2022-11-02 21:09:40,104 INFO L131 PetriNetUnfolder]: For 3/21 co-relation queries the response was YES. [2022-11-02 21:09:40,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1608 conditions, 1523 events. 54/1523 cut-off events. For 3/21 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6385 event pairs, 18 based on Foata normal form. 0/1320 useless extension candidates. Maximal degree in co-relation 1562. Up to 55 conditions per place. [2022-11-02 21:09:40,127 INFO L137 encePairwiseOnDemand]: 1067/1070 looper letters, 18 selfloop transitions, 2 changer transitions 0/961 dead transitions. [2022-11-02 21:09:40,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 961 transitions, 1975 flow [2022-11-02 21:09:40,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:40,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:40,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3078 transitions. [2022-11-02 21:09:40,134 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9588785046728971 [2022-11-02 21:09:40,134 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3078 transitions. [2022-11-02 21:09:40,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3078 transitions. [2022-11-02 21:09:40,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:40,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3078 transitions. [2022-11-02 21:09:40,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1026.0) internal successors, (3078), 3 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:40,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:40,153 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:40,153 INFO L175 Difference]: Start difference. First operand has 951 places, 962 transitions, 1937 flow. Second operand 3 states and 3078 transitions. [2022-11-02 21:09:40,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 952 places, 961 transitions, 1975 flow [2022-11-02 21:09:40,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 961 transitions, 1971 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:40,171 INFO L231 Difference]: Finished difference. Result has 950 places, 961 transitions, 1935 flow [2022-11-02 21:09:40,172 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1931, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=961, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1935, PETRI_PLACES=950, PETRI_TRANSITIONS=961} [2022-11-02 21:09:40,173 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -53 predicate places. [2022-11-02 21:09:40,173 INFO L495 AbstractCegarLoop]: Abstraction has has 950 places, 961 transitions, 1935 flow [2022-11-02 21:09:40,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:40,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:40,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:40,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:09:40,175 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:40,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:40,176 INFO L85 PathProgramCache]: Analyzing trace with hash -679795873, now seen corresponding path program 1 times [2022-11-02 21:09:40,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:40,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224876422] [2022-11-02 21:09:40,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:40,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:40,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:40,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:40,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224876422] [2022-11-02 21:09:40,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224876422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:40,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:40,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:40,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035296210] [2022-11-02 21:09:40,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:40,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:40,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:40,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:40,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:40,220 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1070 [2022-11-02 21:09:40,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 961 transitions, 1935 flow. Second operand has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:40,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:40,224 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1070 [2022-11-02 21:09:40,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:40,564 INFO L130 PetriNetUnfolder]: 30/1162 cut-off events. [2022-11-02 21:09:40,564 INFO L131 PetriNetUnfolder]: For 6/12 co-relation queries the response was YES. [2022-11-02 21:09:40,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1208 conditions, 1162 events. 30/1162 cut-off events. For 6/12 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3244 event pairs, 6 based on Foata normal form. 0/1023 useless extension candidates. Maximal degree in co-relation 1162. Up to 31 conditions per place. [2022-11-02 21:09:40,589 INFO L137 encePairwiseOnDemand]: 1067/1070 looper letters, 18 selfloop transitions, 2 changer transitions 0/960 dead transitions. [2022-11-02 21:09:40,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 951 places, 960 transitions, 1973 flow [2022-11-02 21:09:40,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:40,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:40,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3078 transitions. [2022-11-02 21:09:40,596 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9588785046728971 [2022-11-02 21:09:40,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3078 transitions. [2022-11-02 21:09:40,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3078 transitions. [2022-11-02 21:09:40,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:40,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3078 transitions. [2022-11-02 21:09:40,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1026.0) internal successors, (3078), 3 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:40,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:40,615 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:40,615 INFO L175 Difference]: Start difference. First operand has 950 places, 961 transitions, 1935 flow. Second operand 3 states and 3078 transitions. [2022-11-02 21:09:40,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 951 places, 960 transitions, 1973 flow [2022-11-02 21:09:40,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 949 places, 960 transitions, 1969 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:40,633 INFO L231 Difference]: Finished difference. Result has 949 places, 960 transitions, 1933 flow [2022-11-02 21:09:40,635 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1929, PETRI_DIFFERENCE_MINUEND_PLACES=947, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=958, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1933, PETRI_PLACES=949, PETRI_TRANSITIONS=960} [2022-11-02 21:09:40,636 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -54 predicate places. [2022-11-02 21:09:40,636 INFO L495 AbstractCegarLoop]: Abstraction has has 949 places, 960 transitions, 1933 flow [2022-11-02 21:09:40,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:40,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:40,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:40,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:09:40,639 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:40,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:40,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1047874160, now seen corresponding path program 1 times [2022-11-02 21:09:40,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:40,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882015748] [2022-11-02 21:09:40,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:40,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:40,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:40,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:40,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882015748] [2022-11-02 21:09:40,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882015748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:40,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:40,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:40,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902682636] [2022-11-02 21:09:40,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:40,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:40,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:40,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:40,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:40,685 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1070 [2022-11-02 21:09:40,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 960 transitions, 1933 flow. Second operand has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:40,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:40,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1070 [2022-11-02 21:09:40,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:41,136 INFO L130 PetriNetUnfolder]: 50/1413 cut-off events. [2022-11-02 21:09:41,136 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-02 21:09:41,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1489 conditions, 1413 events. 50/1413 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5422 event pairs, 18 based on Foata normal form. 0/1224 useless extension candidates. Maximal degree in co-relation 1443. Up to 55 conditions per place. [2022-11-02 21:09:41,163 INFO L137 encePairwiseOnDemand]: 1067/1070 looper letters, 18 selfloop transitions, 2 changer transitions 0/959 dead transitions. [2022-11-02 21:09:41,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 950 places, 959 transitions, 1971 flow [2022-11-02 21:09:41,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:41,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:41,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3078 transitions. [2022-11-02 21:09:41,170 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9588785046728971 [2022-11-02 21:09:41,170 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3078 transitions. [2022-11-02 21:09:41,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3078 transitions. [2022-11-02 21:09:41,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:41,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3078 transitions. [2022-11-02 21:09:41,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1026.0) internal successors, (3078), 3 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:41,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:41,186 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:41,187 INFO L175 Difference]: Start difference. First operand has 949 places, 960 transitions, 1933 flow. Second operand 3 states and 3078 transitions. [2022-11-02 21:09:41,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 950 places, 959 transitions, 1971 flow [2022-11-02 21:09:41,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 948 places, 959 transitions, 1967 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:41,204 INFO L231 Difference]: Finished difference. Result has 948 places, 959 transitions, 1931 flow [2022-11-02 21:09:41,206 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=946, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1931, PETRI_PLACES=948, PETRI_TRANSITIONS=959} [2022-11-02 21:09:41,206 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -55 predicate places. [2022-11-02 21:09:41,207 INFO L495 AbstractCegarLoop]: Abstraction has has 948 places, 959 transitions, 1931 flow [2022-11-02 21:09:41,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:41,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:41,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:41,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:09:41,209 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:41,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:41,209 INFO L85 PathProgramCache]: Analyzing trace with hash 21450964, now seen corresponding path program 1 times [2022-11-02 21:09:41,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:41,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629676843] [2022-11-02 21:09:41,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:41,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:41,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:41,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:41,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629676843] [2022-11-02 21:09:41,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629676843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:41,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:41,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:41,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568685830] [2022-11-02 21:09:41,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:41,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:41,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:41,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:41,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:41,256 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1070 [2022-11-02 21:09:41,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 948 places, 959 transitions, 1931 flow. Second operand has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:41,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:41,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1070 [2022-11-02 21:09:41,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:41,686 INFO L130 PetriNetUnfolder]: 50/1374 cut-off events. [2022-11-02 21:09:41,686 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-02 21:09:41,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1450 conditions, 1374 events. 50/1374 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5328 event pairs, 18 based on Foata normal form. 0/1192 useless extension candidates. Maximal degree in co-relation 1404. Up to 55 conditions per place. [2022-11-02 21:09:41,712 INFO L137 encePairwiseOnDemand]: 1067/1070 looper letters, 18 selfloop transitions, 2 changer transitions 0/958 dead transitions. [2022-11-02 21:09:41,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 958 transitions, 1969 flow [2022-11-02 21:09:41,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:41,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:41,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3078 transitions. [2022-11-02 21:09:41,719 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9588785046728971 [2022-11-02 21:09:41,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3078 transitions. [2022-11-02 21:09:41,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3078 transitions. [2022-11-02 21:09:41,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:41,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3078 transitions. [2022-11-02 21:09:41,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1026.0) internal successors, (3078), 3 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:41,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:41,733 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:41,733 INFO L175 Difference]: Start difference. First operand has 948 places, 959 transitions, 1931 flow. Second operand 3 states and 3078 transitions. [2022-11-02 21:09:41,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 949 places, 958 transitions, 1969 flow [2022-11-02 21:09:41,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 947 places, 958 transitions, 1965 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:41,751 INFO L231 Difference]: Finished difference. Result has 947 places, 958 transitions, 1929 flow [2022-11-02 21:09:41,752 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1925, PETRI_DIFFERENCE_MINUEND_PLACES=945, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1929, PETRI_PLACES=947, PETRI_TRANSITIONS=958} [2022-11-02 21:09:41,753 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -56 predicate places. [2022-11-02 21:09:41,753 INFO L495 AbstractCegarLoop]: Abstraction has has 947 places, 958 transitions, 1929 flow [2022-11-02 21:09:41,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:41,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:41,755 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:41,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:09:41,755 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:41,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:41,756 INFO L85 PathProgramCache]: Analyzing trace with hash -925178983, now seen corresponding path program 1 times [2022-11-02 21:09:41,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:41,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579826430] [2022-11-02 21:09:41,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:41,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:41,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:41,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:41,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579826430] [2022-11-02 21:09:41,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579826430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:41,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:41,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:41,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427234217] [2022-11-02 21:09:41,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:41,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:41,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:41,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:41,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:41,807 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1070 [2022-11-02 21:09:41,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 947 places, 958 transitions, 1929 flow. Second operand has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:41,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:41,810 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1070 [2022-11-02 21:09:41,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:42,093 INFO L130 PetriNetUnfolder]: 26/993 cut-off events. [2022-11-02 21:09:42,093 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-02 21:09:42,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1035 conditions, 993 events. 26/993 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2368 event pairs, 6 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 989. Up to 30 conditions per place. [2022-11-02 21:09:42,116 INFO L137 encePairwiseOnDemand]: 1067/1070 looper letters, 17 selfloop transitions, 2 changer transitions 0/957 dead transitions. [2022-11-02 21:09:42,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 957 transitions, 1965 flow [2022-11-02 21:09:42,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:42,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:42,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3077 transitions. [2022-11-02 21:09:42,122 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9585669781931464 [2022-11-02 21:09:42,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3077 transitions. [2022-11-02 21:09:42,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3077 transitions. [2022-11-02 21:09:42,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:42,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3077 transitions. [2022-11-02 21:09:42,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1025.6666666666667) internal successors, (3077), 3 states have internal predecessors, (3077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,133 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,133 INFO L175 Difference]: Start difference. First operand has 947 places, 958 transitions, 1929 flow. Second operand 3 states and 3077 transitions. [2022-11-02 21:09:42,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 957 transitions, 1965 flow [2022-11-02 21:09:42,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 946 places, 957 transitions, 1961 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:42,150 INFO L231 Difference]: Finished difference. Result has 946 places, 957 transitions, 1927 flow [2022-11-02 21:09:42,151 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1923, PETRI_DIFFERENCE_MINUEND_PLACES=944, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1927, PETRI_PLACES=946, PETRI_TRANSITIONS=957} [2022-11-02 21:09:42,152 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -57 predicate places. [2022-11-02 21:09:42,152 INFO L495 AbstractCegarLoop]: Abstraction has has 946 places, 957 transitions, 1927 flow [2022-11-02 21:09:42,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:42,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:42,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:09:42,154 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:42,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:42,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1515436126, now seen corresponding path program 1 times [2022-11-02 21:09:42,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:42,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923057817] [2022-11-02 21:09:42,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:42,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:42,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:42,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:42,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923057817] [2022-11-02 21:09:42,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923057817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:42,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:42,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:42,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176921984] [2022-11-02 21:09:42,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:42,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:42,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:42,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:42,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:42,204 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1070 [2022-11-02 21:09:42,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 946 places, 957 transitions, 1927 flow. Second operand has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:42,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1070 [2022-11-02 21:09:42,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:42,577 INFO L130 PetriNetUnfolder]: 46/1244 cut-off events. [2022-11-02 21:09:42,577 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-02 21:09:42,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1311 conditions, 1244 events. 46/1244 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3986 event pairs, 18 based on Foata normal form. 0/1086 useless extension candidates. Maximal degree in co-relation 1265. Up to 55 conditions per place. [2022-11-02 21:09:42,605 INFO L137 encePairwiseOnDemand]: 1067/1070 looper letters, 18 selfloop transitions, 2 changer transitions 0/956 dead transitions. [2022-11-02 21:09:42,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 947 places, 956 transitions, 1965 flow [2022-11-02 21:09:42,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:42,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:42,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3078 transitions. [2022-11-02 21:09:42,611 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9588785046728971 [2022-11-02 21:09:42,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3078 transitions. [2022-11-02 21:09:42,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3078 transitions. [2022-11-02 21:09:42,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:42,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3078 transitions. [2022-11-02 21:09:42,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1026.0) internal successors, (3078), 3 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,622 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,623 INFO L175 Difference]: Start difference. First operand has 946 places, 957 transitions, 1927 flow. Second operand 3 states and 3078 transitions. [2022-11-02 21:09:42,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 947 places, 956 transitions, 1965 flow [2022-11-02 21:09:42,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 945 places, 956 transitions, 1961 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:42,640 INFO L231 Difference]: Finished difference. Result has 945 places, 956 transitions, 1925 flow [2022-11-02 21:09:42,642 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1921, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=954, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1925, PETRI_PLACES=945, PETRI_TRANSITIONS=956} [2022-11-02 21:09:42,642 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -58 predicate places. [2022-11-02 21:09:42,643 INFO L495 AbstractCegarLoop]: Abstraction has has 945 places, 956 transitions, 1925 flow [2022-11-02 21:09:42,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:42,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:42,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 21:09:42,644 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:42,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:42,645 INFO L85 PathProgramCache]: Analyzing trace with hash -379848582, now seen corresponding path program 1 times [2022-11-02 21:09:42,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:42,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486526023] [2022-11-02 21:09:42,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:42,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:42,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:42,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486526023] [2022-11-02 21:09:42,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486526023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:42,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:42,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:42,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596914782] [2022-11-02 21:09:42,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:42,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:42,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:42,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:42,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:42,696 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1070 [2022-11-02 21:09:42,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 956 transitions, 1925 flow. Second operand has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:42,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1070 [2022-11-02 21:09:42,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:43,063 INFO L130 PetriNetUnfolder]: 46/1205 cut-off events. [2022-11-02 21:09:43,063 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-02 21:09:43,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1272 conditions, 1205 events. 46/1205 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3744 event pairs, 18 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1226. Up to 55 conditions per place. [2022-11-02 21:09:43,093 INFO L137 encePairwiseOnDemand]: 1067/1070 looper letters, 18 selfloop transitions, 2 changer transitions 0/955 dead transitions. [2022-11-02 21:09:43,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 946 places, 955 transitions, 1963 flow [2022-11-02 21:09:43,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:43,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:43,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3078 transitions. [2022-11-02 21:09:43,100 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9588785046728971 [2022-11-02 21:09:43,100 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3078 transitions. [2022-11-02 21:09:43,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3078 transitions. [2022-11-02 21:09:43,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:43,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3078 transitions. [2022-11-02 21:09:43,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1026.0) internal successors, (3078), 3 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:43,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:43,111 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:43,112 INFO L175 Difference]: Start difference. First operand has 945 places, 956 transitions, 1925 flow. Second operand 3 states and 3078 transitions. [2022-11-02 21:09:43,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 946 places, 955 transitions, 1963 flow [2022-11-02 21:09:43,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 944 places, 955 transitions, 1959 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:43,129 INFO L231 Difference]: Finished difference. Result has 944 places, 955 transitions, 1923 flow [2022-11-02 21:09:43,131 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1919, PETRI_DIFFERENCE_MINUEND_PLACES=942, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=953, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1923, PETRI_PLACES=944, PETRI_TRANSITIONS=955} [2022-11-02 21:09:43,132 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -59 predicate places. [2022-11-02 21:09:43,132 INFO L495 AbstractCegarLoop]: Abstraction has has 944 places, 955 transitions, 1923 flow [2022-11-02 21:09:43,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:43,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:43,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:43,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:09:43,136 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:43,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:43,136 INFO L85 PathProgramCache]: Analyzing trace with hash 47789874, now seen corresponding path program 1 times [2022-11-02 21:09:43,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:43,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946762756] [2022-11-02 21:09:43,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:43,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:43,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:43,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:43,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946762756] [2022-11-02 21:09:43,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946762756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:43,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:43,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:43,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466867417] [2022-11-02 21:09:43,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:43,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:43,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:43,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:43,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:43,228 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1016 out of 1070 [2022-11-02 21:09:43,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 944 places, 955 transitions, 1923 flow. Second operand has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:43,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:43,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1016 of 1070 [2022-11-02 21:09:43,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:44,439 INFO L130 PetriNetUnfolder]: 206/3660 cut-off events. [2022-11-02 21:09:44,439 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-02 21:09:44,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3982 conditions, 3660 events. 206/3660 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 26357 event pairs, 132 based on Foata normal form. 0/3119 useless extension candidates. Maximal degree in co-relation 3936. Up to 256 conditions per place. [2022-11-02 21:09:44,488 INFO L137 encePairwiseOnDemand]: 1067/1070 looper letters, 21 selfloop transitions, 2 changer transitions 0/954 dead transitions. [2022-11-02 21:09:44,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 945 places, 954 transitions, 1967 flow [2022-11-02 21:09:44,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:44,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:44,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3072 transitions. [2022-11-02 21:09:44,494 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9570093457943926 [2022-11-02 21:09:44,494 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3072 transitions. [2022-11-02 21:09:44,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3072 transitions. [2022-11-02 21:09:44,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:44,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3072 transitions. [2022-11-02 21:09:44,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1024.0) internal successors, (3072), 3 states have internal predecessors, (3072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:44,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:44,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1070.0) internal successors, (4280), 4 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:44,507 INFO L175 Difference]: Start difference. First operand has 944 places, 955 transitions, 1923 flow. Second operand 3 states and 3072 transitions. [2022-11-02 21:09:44,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 945 places, 954 transitions, 1967 flow [2022-11-02 21:09:44,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 943 places, 954 transitions, 1963 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:44,527 INFO L231 Difference]: Finished difference. Result has 943 places, 954 transitions, 1921 flow [2022-11-02 21:09:44,528 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1070, PETRI_DIFFERENCE_MINUEND_FLOW=1917, PETRI_DIFFERENCE_MINUEND_PLACES=941, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=954, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=952, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1921, PETRI_PLACES=943, PETRI_TRANSITIONS=954} [2022-11-02 21:09:44,529 INFO L287 CegarLoopForPetriNet]: 1003 programPoint places, -60 predicate places. [2022-11-02 21:09:44,529 INFO L495 AbstractCegarLoop]: Abstraction has has 943 places, 954 transitions, 1921 flow [2022-11-02 21:09:44,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:44,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:44,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:44,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 21:09:44,531 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-02 21:09:44,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:44,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1880178902, now seen corresponding path program 1 times [2022-11-02 21:09:44,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:44,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665177138] [2022-11-02 21:09:44,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:44,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:45,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:45,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:45,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665177138] [2022-11-02 21:09:45,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665177138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:45,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:45,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:09:45,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285763742] [2022-11-02 21:09:45,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:45,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:09:45,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:45,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:09:45,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:09:45,311 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 866 out of 1070 [2022-11-02 21:09:45,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 943 places, 954 transitions, 1921 flow. Second operand has 6 states, 6 states have (on average 867.8333333333334) internal successors, (5207), 6 states have internal predecessors, (5207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:45,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:45,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 866 of 1070 [2022-11-02 21:09:45,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand